<template>
  <div>
    <el-form ref="loginForm" :model="form" :rules="rules" label-width="80px" class="login-box">
      <h3 class="login-title">欢迎登录航助</h3>
      <el-form-item label="账号" prop="user_id">
        <el-input type="text" placeholder="请输入账号" v-model="form.user_id"/>
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input type="password" placeholder="请输入密码" v-model="form.password"/>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" v-on:click="onSubmit('loginForm')">登录</el-button>
        <el-button type="primary" v-on:click="onRegister()">注册</el-button>
      </el-form-item>
    </el-form>

    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisible"
      width="30%"
      :before-close="handleClose">
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import api from '../tool/user'
  export default {
    name: "login",
    data() {
      return {
        form: {
          user_id: '',
          password: ''
        },
        // 表单验证，需要在 el-form-item 元素中增加 prop 属性
        rules: {
          user_id: [
            {required: true, message: '账号不可为空', trigger: 'blur'}
          ],
          password: [
            {required: true, message: '密码不可为空', trigger: 'blur'}
          ]
        },
        // 对话框显示和隐藏
        dialogVisible: false
      }
    },
    methods: {
      onSubmit(formName) {
        // 为表单绑定验证功能
        this.$refs[formName].validate(async (valid) => {
          if (valid) {
            let response = await api.login(this.$data);//返回给我data对象
            if (response.data.code === 40000) {//失败
              alert("账号和密码不匹配");
            } else {//登陆成功
              let user_name = response.data.data.user_name;//后续页面显示user_name
              let teacherid = response.data.data.id;//教师表的主键
              console.log(user_name)
              console.log(teacherid)
              this.$router.push({name: 'teacherMain', params: {user_name: user_name, teacherid: teacherid}});//id
              this.form = [];
              //username = res.username
              //id = res.id
              // this.$router.push({name: 'teacherMain', params: {username: username, teacherid: }});//id
            }
          } else {
            this.dialogVisible = true;
            return false;
          }
        });
      },
      onRegister() {
        this.$router.push({path: '/register'});
      }
    }
  }
</script>

<style lang="scss" scoped>
  .login-box {
    border: 1px solid #DCDFE6;
    width: 350px;
    margin: 180px auto;
    padding: 35px 35px 15px 35px;
    border-radius: 5px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    box-shadow: 0 0 25px #909399;
  }

  .login-title {
    text-align: center;
    margin: 0 auto 40px auto;
    color: #303133;
  }
</style>
